Lew, I think most of your criticism of the left and of environmentalists is apt, but “libertarians” have only to look in the mirror to see someone to blame for the lack of productive discourse on environmental and regulatory issues, and the reason why libertarians are being marginalized in the confused debate over the legitimate role of the state.

– refuse to follow-up on their own analyses to dig more deeply to see that the roots of the disastrous cycle of regulation (and snowballing fights over the wheel of government) lie in the grant of limited liability to corporate investors, and the resulting externalization of risk and undermining of common law property protections:http://mises.org/Community/blogs/tokyotom/search.aspx?q=limited+liability